Michaelmas daisy pollen, SEM

Michaelmas daisy pollen, SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Michaelmas daisy pollen. Coloured scanning electron micrograph (SEM) of pollen grains (red) on the anther of a michaelmas daisy (Aster amellus). Pollen grains are the male sex cells of a flowering plant. Their characteristic surface is used by botanists to recognise and classify plants. Pollen in plants is used for transferring male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower. Magnification: x800 when printed at 10cm wide.

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Keywords: aster amellus, asteraceae, biological, biology, black background, botanical, botany, coloured, compositae, false-coloured, flora, flower, male, michaelmas daisy, nature, pollen grains, reproduction, reproductive structure, scanning electron micrograph, scanning electron microscope, sem

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